Apple Watch is randomly scrolling through menus and clicking on things

My Apple Watch was just hacked remotely. Somebody scrolled through all my menus in a tempo with a purpose. Because I had it on my arm and I get a vibration when it is active I noticed it immediately. I put it off my arm, and then the PIN Code dropped in. The person (or KI or computer) then tried to brute force the pin code. What did I do next? I installed the latest software update and then my watch was silent and functioning normally. Afterwards I changed the password of my account that is connected with it - but I have 2 factor authentification active, so I do not assume my account was hacked.

Has anybody experienced the same thing?

[Re-Titled by Moderator]